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Synthetic MR imaging–acquisition parameters
ST-SyMRIFAST-SyMRI with/without DLRa
TR (ms)4000–47434000
TE (ms)21.2/84.817.5/87.4
TI (ms)4 Automatically calculated saturation delays
Echo-train lengthb12
Bandwidth (kHz)22.7331.25
Acceleration factor (ASSET)23
Section thickness (mm)b4
Spacing (mm)b1
FOV (cm)b23
Phase FOVb0.8
Frequency matrix (m × n)b308
No of sectionsb24–32
NEXb1
Scan time (min:sec)5:04–6:013:28
  • Note:—m × n indicates slices of m by n dimensions; ASSET, array spatial sensitivity encoding technique; NEX, number of excitations.
  • ↵a All MR imaging acquisition parameters and scan times were identical for FAST-SyMRI and FAST-SyMRI+DLR.
  • ↵b The same parameters were used in all 3 MR imaging protocols.